Conveyer for book-stitching machines.



M. CHRISTENSEN.

CONVEYER FOR 500K smcmwqmcmms.

APPHCATION FILED APR. 24 I913.

Patented- May 25, 1915.

// VEN TOP? wwm A TTUFPNEL Y5 MARTIN cnRfsTENsEN, OF RACINE, WISdONSIN.

CONVEYER FOR BOOK-STITCHING MACHINES Specification of Iletters Patent.

Patented May 25, 1915.

Application filed April 24, 1913. Serial No. 763,207.

To all whom it may concern Be it known that I, MARTIN CHRISTENSEN, a citizen of the United States, and a resident of Racine, in the county of ltaeine and State of \Visconsin, have invented new and useful Improvements in Conveyers l'or took-Stitching .\Iachines, of which the following is a (ltist'il'llflltltl, rel'erence being bad to the accompanying drawings, whi h are a part ol" this sptaiitieation.

This invention relates to improvements in conveyers tor book stitching machines in which groups ol' leaves of book or pamphlets are placed on a moving endless belt which is adapted to carry the leaves in successive order from the point of feed to the stitching mechanism where they are tastcned together by the stitches or staples.

-ln ordinary machines 'oli this type now in use the leaves are folded in Vtormation and placed in groups or sets upon an inverted fixed V-shaped rail which is provided with a movable endless chain belt having projecting lingers which engage the groups of leaves and slide them along the rail to the stitching II'LWlHlItlHYl. This manner ol' l'eed was found objectiomible in that the groups of leaves in sliding along the track would change their relative position with relation to each other, due to frictional contact with the liked track. so that when they arrived at the stitching mechanism: they would be. disarranged with the result that when stitched the dillerent leaves of a book will not registerwith *aeh other and the work is not satist'actory.

A 'l'urther objection to the old manner of feed is that some of the leaves which rested directly upon the lixedtraek would become soiled by the rubbing contact with thctrack and as the soiled leaves would not be noticed until after they were bound with the other leaves the value ot'the whole book would be.

lessened.

, It isone ot' the objects of the present invention to provide a conveyer for book stitching machines which will overcome the. bel'ore mentioned obiectionable features and feed the groups ol leavesin regular order without. the liability of disarranging or soiling. the leaves.

A further object of the invention is to provide a corneyer l'or hook stitching machines in which the track for holding the leaves is combined with the endless eonveycr and moves therewith.

' improved eonveyer; Fig. 2, sectlonatview thereo't' taken on line 2E A turthcr object of the invention is to provide a conveyor for book stitching machines which is of simple construction, is

strong and durable and is well adapted for the purpose described.

With the above and other objects in view, the invention consists of the improved conveyer for book stitching machines and its parts and combinations as set forth in the claims. and all etpiivalents thereof.

In the accompanying drawing in which the. same reference characters indicate the same parts in all ot the views: Figurel is a side view of a portion of the frame of a book stitching machine provided with the is a transverse of Fig. 1; Fig. 3 is an enlarged longitudinal sia'tiollal view of a portion of the conveyer and one ol its supporting wheels; and Fig."

l is an inverted view olf several links of the conveyer.

ltel'errii'ig to the drawing the numeals 8 and 9 indicate two of the supporting standards of the conveyor ot' the book stitching machine which arc of approximately inverted Y-t'orm. The. upper end of the forward standard 8 carries a sprocket wheel 10 and the rear standard 9 carries a chain tightener trame ll which is provided with sprocket wheels 12 and 12). The tightener l'raine is provided with two horizontally projecting.threaded bolt members 11- which extend through openings 15 in the standard and have nuts lb threaded on the bolt members on opposite sides of the said standard.

The sproclv'et wheellO is journaled 1n a slotted bearing 17 to permit the said Wheel to acconnnodate itselt to the links of the conveyer.

guide bar IS, rectangular in cross section. extends t'rom one standard to the other and mounted on, the upper ends thereof in 'illlllttllttlt with the upper sprocket wheels. ,The, improved conveyer 19 which rldes on this guide bar comprises pairs of spaced link members 20 having inwardly extending otl'set. portions 21 on one end wlnch are overlapped bythe adjacent straight end portions 22 of the inl acent link mei'nbers. The overintegral with the pins or may be in the form of sleeves slipped over the pins and positioned between the links.

Each pair of link members are provided with a cover 25 of inverted V-forn1 in cross section and having side portions which project below the said members to form guide extensions 26 which co-act with the guide bar to hold the conveyer in proper position to receive, support and carry the groups of leaves to the stitching portion'of the machine (not shown).

Each fifth hood is provided with an upwardly and outwardly projecting pin 27 and between these pins the leaves to -be bound in groupsare placed.

The hood extensions are of angular formation or beveled at the corners as indicated by the numeral 28 to permit the linkmembers to turn at their pivotal connections when traveling over the sprocketwheels.

The hoods are of suificient length to corn tact with each other along their front and rear edges when traveling on the guide bar so that a smooth surface is provided for holding the leaves.

In order to support the lower returning bar extends between the diverging legs of the standards.

In operation it is only necessary'to drop thegroups or sets of leaves-on the hood ppr tions of the conveyer and they will be carried I to the stitching mechanism without coming into rubbing contact with other parts of the conveyer and consequently will lie smooth and evenly on the hoods and preserve their alined position with relation to each other when stitched.

From the foregoing description it will be seen that the conveyor for book stitching machines is of simple construction and is well adapted for the purpose described. What I claim as my invention is: 1. A conveyer for a book stitching machine, comprising a supporting mcans,'an

. endless belt carried thereon, and a plurality upper path of travel.

of hood members extending over one porsmooth uninterrupted sheet supporting wall on the portion of the belt traveling in its A conveyor for a book stitching machine, comprising a supporting means, an

endless chain carried thereon, and a plural ity of hood members connected to the linksof the chain and extendingover the upper por tions of the links when traveling in its upper sides of the chain links and having down- I wardly projecting extensions to form side the chain travels.

4:. A conveyer for a book stitching ma.- chine, comprising a supporting means, a guide bar carried thereon, an endless chain supported in part on said bar, and a pluguides for engaging a support upon which rality of hoods carried by the chain and extending in inverted V formation over the portion of the chain resting on the bar and projecting downwardly on both sides of the bar.

5. A conveycr for a book stitching machine, comprising a supporting means, an

endless chain carried thereon, a plurality of V-shaped hoods extending over three sides of the chain links and havingextensions as,

form side guides, and pins projecting from some of the' hoods.

ti. A conveyer for a book stitching ma, chine, comprising a supporting means, a

guide barcarried thereon, an endless chain Q supported in 'part on said bar, a pluralit of hoods carried by the chain ,andexten in in inverted V formation over the portion 0 the chain resting on. the bar and projecting I I downwardly-on both sides of the bar, .an pins projecting from some-of the hoods.

7. A conveyer for a book stitching mechine, comprising a supporting neans,-'an

endless chain supported thereon and formed of pairs of spaced link members having inwardly extending oflset portions which are overlapped by thestraight end portions of adjacent pairs of links, pins extending,

through the overlappin' portions, a V- shapedhood covering a p urality of sides of each pair of link members and having extension forming side guides, and pins pro jecting from some of the hoods.

In testimon whereof, I afiix my signature in presence 0 two witnesses.

MARTIN CHRISTENSEN: Witnesses: i

G. H; KEENEY, A. F. 'Minmm. 

